While the Wunderbar is most often used to edit pages and posts — their titles, contents, and excerpts — it works elswhere as well.
Wunderbar can edit visitors' comments in exactly the way it edits pages and posts, with full WYSIWYG word processing capabailities. The only differences are due to WordPress itelf: saving a comment does not archive an older version – there's only one version of a comment available to you, no history. But comments come with an added feature: under the drop-down arrow, you can delete a comment, should you want to.
Since version 1.1, the Wunderbar comes with it's own editable widget. which you can use wherever widgets are allowed. It works like the basic WordPress text widget, except that the Wunderbar version can be edited while you are visiting the main pages of the website. You can have multiple widgets, even displayed on the same page. Like comments, each widget has only one version with no history.
It's also worth noting that the Wunderbar's “put_content_here” shortcode can be inserted into other widgets, includig WordPress' own text widget.
Advanced Custom Fields
The Advanced Custom Fields plugin is a powerful and popular free plugin which lets you add additional fields to your posts with extreme flexibility. People have found thousands of ways to extend WordPress by adding new fields — names, prices, extra content — the use cases are endless. If you have the ACF plugin installed, Wunderbar will detect it and enable you to edit ACF fields ot the text, textarea, and WYSIWYG types. There's nothing to learn or configure — editing ACF fields works exactly like editing everything else does!